Device for the vertical adjustment of the frame of a motor-plow relatively to the steering-wheel.



(I. GLHCHE.

DEVICE FOR THE VERTICAL ADJUSTMENT OF THE FRAME OF A MOTOR PLOWRELATIVELY w THE STEERING WHEEL.

APPLICATION FILED JUNE 19. 19M.

Patented Nov. 5, 191%.,

4 SHEETS-SHEET l- II B Wjinesses:

C. GLEICHE.

DEVICE FOR THE VERTICAL ADJUSTMENT OF THE FRAME 01:11 MOTOR mowRELATlVELY TO THE STEERING WHEEL. APPLICATION man 1u1119. 1911.

Patented Nov. 5, 1918.

4 SHEETS-SHEET 2- C. GLEICHE.

DEVICE FOR THE VERTICAL ADJUSTMENT OF THE FRAME OF A MOTOR PLOWRELATIVELY T0 THE STEERING WHEEL.

APPLICATION FILED JUNE I9, m4.

Patented Nov. 5, M8.

4 SHEETS-SHEET 3.

C. GLEICHE.

DEVICE ron THE VERTICAL ADJUSIMENT 0F we FRAME or A MOTOR PLOWRELATIVELY TO THE STEERING WHEEL.

APPLICATION FILED JUNE 19, I914.

Patented Nov. 5, 1918.

4 SHEETS-SHEET 4.

I i w W W W 62w] 6]? awe Wimesses:

2d action automatically at the limits of the in:

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t l ennrcnn, or nnnmn, ennrrnnv, nssren'on to storm no'ronrrriue ensnnt-'rn nr"rue-, or near, earn a no it DEVICE FOFHJIIHE WERTIGAL ADJUSTMENTTHE ill 0F UTUR-FLOW RELA- TIV-IIELY TO THE STEERING- FEEL.

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bpecification of Letters Patent. Patented lhl trtf, 1.1

application filed June 1.9, 191%. denier] Ito. are,

To all whom it may concern: I

Be it lmown that l, CARL (item, a citizen of the German Empire, andresident of Berlin, Germany, have invented certain new and usefulImprovements in Devices for the Vertical Adjustment. of the Frame of aMotor-Plow Relatively to the Steerin Wheel, of which the following is aspeci cation;

ln order to regulate the depth to which the shares or other soil-workingelements of an agricultural machine will enter the ground, variousdevices have been proposed for raising and lowering the frame carryingsuch elements, relatively to the supporting wheels of the vehicle,and-particularly with reference to the directing or steering wheel of amotor plow. According to my present invention, stops are providedwhich'will cause the adjusting device to'be thrown out'of tended travelof said device; the adjusting device is thrown into action by theoperator. This automatic control of the adjusting device is ofparticular value in cases where such adjusting device is power-driven(instead of being driven by the operator) 3 with a power-drivenadjusting device, the oper-a tor simply throws in and out at'the. propertime, the clutch or other device which connects the motor with theadjusting fully, it may occur that the adjusting device will be allowedto remain in action too long.

If for instance the adjusting device comprises a rack and'a pinion,then, in case the operator is careless, the pinion maybe car-- riedbeyond the end of the rack, or (ifthe rack teeth are formed by cutting abar the ends of which retain the full width) the" pinion may be broughtin engagement. withthe wide end portion of the rack and'have its teethbroken by contact with such end portion.

The defect pointed out above is avoided, according to my invention, byproviding device, and if he does not watch the operation care'- upon theframe or support carrying the directin or steering wheel of the vehicle,since with t is arrangement the stops arereadily visible and accessible,easily applied, and conveniently fastened according to the desiredlimits of the movement of the adjusting device. ll may also make thesestops adjustable, so that the exact point at which the adjusting devicewill be thrownout of action may be varied, yet after each verticaladjustment of the vehicle frame relatively to the steering wheel, theplow shares or other soil-working devices will enter the ground to thesame depth, as long as the adjustment of the stops-remains unaltered.

A specific erample of my invention is line A-B of Fig. l; F ig.'3 is aplan view, on an enlarged scale,of the clutch mecha.

nism and adjacent parts; Fig. lis an elevation of the clutch mechanismand adjacent parts, partly in section on, line C-.-D of Fig.

3; Fig. 5 is a view similar to Fig. d, but showing the parts in adifl'erent position; 6 and, 7 are vertical sections, drawn upon a-stilllarger'scale, of another form [of locldng device in connection with my.invention, showing sa d device in two-pose 'tions.

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v, "lfherack l, in which steering wheel 3 i is journaled, is .mountedtoslide up or down 'ina guide2 secured to the plow frame 33.

Tl vvo devices are provided for adjusting the frame 33 up or dorelatively to said steermg wheel 3:, d device, operated entirely byhand, comprises a crank 6 carried by a shaft 5 and within easy reach ofthe operator seated on the seat 4. Another device, more fully..'described hereinafter, connects the shaft "with the motor 11 .of theplow, said connection being controlled by, a lever 10, located withintheoperators reach and adapted to. shift a clutch sleeve 7, held to turnwith the shaft 5, into engagement with clutch teeth .formed on theadjacent'faces of two bevel wheels 8 and 9 respectively which rotate inopp te directions, being in engagement ltd I with a bevel wheel 18,driven by the motor 11 as follows: The motor shaft 12 is connected bygearing 12 with a countershaft 13, which, by. meansof bevel gearing 15,14, transmits its rotation to the connected shafts 16, 17, the lattercarrying the above-mentioned bevel wheel 18. Of course, the bevel wheels8 and 9 are mounted on the shaft 5.

loosely, and are held against longitudinal movement in'any suitablemanner.

' Whether the shaft 5 is turned by hand, by operating the crank 6 (theclutch sleeve. being in the central, disengaged position), or whethersaid shaft is rotated-by the motor 11, after the operator has thrown theclutch.

sleeve 7 to one side or the other (for raising or lowering respectively)the rotation of the shaft 5 will adjust the frame 33 up or down, by.means of the following mechanism: A worm19, securedto the shaft 5,meshes with a worm wheel 20 connected with a shaft 21 which extendstoward the steering wheel 3 and, by means'of bevel gearing 22, 23 (Fig I1 1*), drives a short horizontal cross shaft 23 journaled in the frame33 and carrying a pinion 24 in mesh with the rack 1.

According to the form of my invention illustrated, the rack 1 in whichthe steering Wheel 3 is jpurnaled, (or rather with which the steeringwheel is connected, in the manner described below), carries two stops 25and 26 respectively, each adjustable to fit any one of avertical seriesof. holes 28, a scale 27 being preferably provided on the rack to guidethe operator'in adjusting said stops. The stops 25, 26- lie in the pathof the rear and of a lever 29, pivoted to swing about a horizontal axis31, upon a bracket 30 rigidly secured to the plow frame 33. The forwardend of the lever 29 is connected by means of a wire cable or othertension member 32,

guided by pulleys 34 journaled on the plow frame 33, with the two armsof a lever 35 which is secured rigidly to the clutch lever 10, asby'being fastened to the trunnions or axle 36 of said lever v10.

The "lever 10 .is provided with an aperture 37 which in the :central oridle positibn of the clutch lever (indicated by dotted lines in Fig. 3)registers with a slot or guide 38 for one end of a vertically movablerod 39, which end may enter the aperture 37 of the lever 10, to lock thelatter, see Fig. 5. The rod 39 is connected rigidlywith another rod 40,the upper end of which is adapted to enter recesses or sockets 41provided on the periphery of a disk 42 secured rigidly to the shaft 5.The rod is connected, at its lower end, (see Fig. 2) with a treadle 44adapted to be actuated by the operator, said treadle and the rods 40, 39being normally pressed upward by a spring 43.

To the rod 40 is connected pivotally a link 45 having a like connectionwith one arm 46 of a lever'fulcrumed at 47 upon the plow 'plow frame 33.The upper end of the rod 50 cotiperates, in the manner described below,with the hand crank 6, which is mounted loosely on the shaft 5 and isprovided with a sleeve or hub having clutch teeth 51 adapted to engageclutch teeth 52 on a sleeve 53 rigidly secured to the shaft 5. Withinthe two sleeves is arranged a spring 54 tending to hold the crank 6 inthe disconnected position shown in Fig. 4.

In the casin 55 containing the worm 19 there is journa ed a shaft 56(Fig. 4) carrying a hand 57 indicating on a dial or scale 58 provided onthe casing 55; this shaft 56 is rotated from the shaft 21, say by meansof toothed gearing 59 located in the casing 55.

indeed possible to bring the hand crank 6 into clutch engagement withthe sleeve 53, by overcoming the resistance of the spring 54, but eventhen it will be impossible to turn the shaft 5, since the latter islocked by the engagement of the rod 40 with one of the recesses 41 inthe periphery of the disk 42. If the operator desires to raise or lowerthe frame 33, relatively to the steering wheel 3, by an exclusivelymanual operation, he will first press down the treadle 44, but notenough to cause the upper end of the rod 39 to leave the aperture 37 ofthe clutch lever 10; the rod 40 however, is by this partial depressionof the treadle 44, removed from contact with the disk 42. At the sametime, the connection comprising the link 45 and lever 46, 48 causes therod 50 to be raised, but not enough to bring it between the clutch teeth51, 52. It is now possible, by shifting the crank 6 to theclutchedposition shown in Fig. 5, and then turning said crank, to rotatethe shaft 5, since the latter is now released from the locking rod orbolt 40. The rotation of the shaft 5 is transmitted by the gearing 19,20, shaft 21, gearing 22, 23, and shaft 23', to the pinion 24, so thatthe plow frame 33 will be raised or lowered (according to-the directionin which the shaft 5 is rotated) relatively to the steering wheel 3, theextent of this vertical adjustment depending; of course, on the numberof-turns given to the shaft 5. While the shaft 5 is thus being turnedmanually, the clutch lever 10 remains locked in its disengaged orneutral position, so that there is no danger of accidentally shiftingthe lever 10 and throwing in the power connection for shaft 5 while thelatter is being turned manually by the operator. Of course, seriousinjury to the driver might follow if the power connec lilglt clutchlever (Fig. d). All, the same time the rod 56'is raised to a higherposition than in the operation described above, so that the gagementwith said shaft.

upper endjof said rod, which end is preferably forked, will come betweenthe teeth 51' and 52, thereby locking the crank 6 against movementlengthwise of the shaft 5, so that said crank cannot be brought intoclutch en- T thus avoid all danger of injury to the driver, such aswould be liable to result if, at the time the shaft 5 is being rotatedby the power mechanism, he could bring the crank 6 into clutchengagement with said'shaft. After the clutch lever 16 has been releasedas described, it can be swung to one side or the other to bring theclutch sleeve 7 into on gagement with one or the other of the drivingwheels 3 and 9 which rotate in opposite directions. The shaft 5 willthen be power-driven in one direction or the other,-

andits rotation will be transmitted to the pinion 24L in the sainemanner as when the shaft is rotated to the manual operationof the crank6; the esired vertical adjustment pf theplow frame 33 relatively to thesteeras mg wheel 3 may thus be obtained with the al orpowcr derived fromthe motor ll.

other the pinion 24 berotated by the manual I operation of the crank 6,or by power derived from the motor ll, if the motion of the plow frame33 relatively to the rack l carrying the steering wheel 3 should be ofsuch extent'as to bring the rear end of the lever 29 into engagementwith one or the other of-the stops 25,26, this lever will be caused'toswing on its axis 31, thereby causing the lever 35 and the clutch lever10 to be swung on their axis 36, through the action of the wire cable orpullin member 32. The clutch sleeve 7 is thus slufted into the centralor neutral position, so that the power mechanismcannot adjust the plowframe 33 beyond the safety limits, that is to say, a sufficient distanceto cause breakage or disengagement of the pinion 24. As the clutch lever10 swings to its central position, its aperture 37 again comes inregistry with the slot or guide 38, and (since the treadle 44 has beenreleased by the driver) the spring 43 will cause the rods or lockingbolts 39, 4:0 to enter again the aperture 37 and one of the recesses l1respectively, thus lock-- ing the clutch lever in its neutral position,

and also locking the shaft 5 against rotation, so that said shaft cannotbe operated manually either. At the same time, the

locking rod is brought from the loclning position shown in hig. t to thereleased position shown in ltig. 5. .btill, for the reasons explainedabove, while it is now possible to turn the crank 6 alone, it is notpossible to turn said crank with the shaft 5, since the latter is lockedby'the rodor bolt l0. lf, when depressing the treadle tell, the shaft 5is released from its locking bolt or rod 40 before the lutch lever 16 isreleased from its locking bolt 39, then upon the operation of the lever29, the clutch lever it) will be locked before the shaft 5. ln anyevent, Whetherthe shaft 5 is actuated manually or by the power of themotor ll, the arrangement described above insures absolute safetyagainst breakages of the adjusting mechanism, which breakages might becaused by carrying the pinion 2t too far on the rack l, or by continuingto apply the power of the motor 11 to the shaft 5 after the latter hasbeen locked against rotation; in other words,

the improved mechanism also prevents a premature lochng of the shaft 5against rotation.

For the sake of completeness, ll-willgive a briefdescription of thesteering mechanism shown in the drawings, although such mechanism formsno part of my present inarm 71 on a shaft 72 which is operated from thesteering shaft 73 in any suitable manner, as by means of the customaryworm and wheel connection indicated at 74.

The dial or scale 27 may be omitted when the holes 28 are arranged atpredetermined intervals, butfacilitates the exact vertical adjustment ofthe frame 33 and of the plow shares or other soil-working devicescarried thereby, so that said devices will penetrate to the desireddepth. llt will be obvious that the depth to which the plow shares enterthe soil, will depend on the adjustment of the stops 25, 26 on the rack1 carrying the steering Wheel 3. Thus, after raisin the plow shares totheir inoperative posltion, they will always be lowered to the sameoperative position, as long as the adjustment of the stops 25, 26 is notaltered. All that the driver has to do to lower the shares to theoperative position, or to raise them to theinoperative position, is todepress the treadle at fully and to swing the clutch lever 10 in one diec n or the oth r, In this no I case, the power of the motor will beutilized to effect the adjustment of the plow frame 33 and of thesharescarried thereby. If the driver prefers to work the shaft by hand,5 he will depress the treadle 44 only partiall and then connect thecrank 6 with said sha t in the manner described above. It will also be'observed that my improved mechanism provides a safeguard against anaccidental alteration of the furrow depth during the plowing operation,say .b an accidental shifting of the lever 10- w ile the machine isplowing, since the moment the clutch sleeve .7 is thrown into theneutral position, not only the shaft 5, but the leverlQ is lockedpositively, by the rods or bolts 40and 39 respectively. There is anoperative connection between the scale 27 "or rather the pinion 24, andthe dial 58 or rather the hand 57, by means of the shaft 56, gearing.59, shaft 21, gearing 22, 23, and Sh ft 23'. The driver, by looking atthe scale 58 which is in front of him, can thus see Whether the deviceis operating properly, that is, whether the stops 25, 26 really arrestthe adjusting device at the desired points. If for instance the tensionmember 32 should break or become slack, the apparatus would cease towork properly, and this would be indicated t the driver by the fact thatthe hand- 57 would travel beyond the points on the scale 58 whichcorrespond to thelocation of the stops 25, 26. It will be understoodthat the scale 58 is graduated 85 in such a manner that the hand 57 willindicate at all times, the-position of the pinion 24 relatively to therack 1. In case of the device becomin inoperative as mentioned above,the driver would at once (heconnect the. clutch sleeve 7 by throwing thelever 10 to the neutral position thus stop ping the operation of theadjusting device.

Of course, the driver can in the same manner arrest theadjusting deviceat any time before the stop 25 or 26 arrests it automatically, forinstance if at any particular place it should be desired to have thefurrow of lessdepth than corresponds to the adjustment ofthe stop 26.

In Figs. 6 and 7 'I have shown another construction for the independentlocking of the devices for ithc manual. and the motoractuate'd operationof the adjusting mechanism. The shaft 5 as before carries a disk '42provided with peripheral holes or recesses 411-adapted to receive theend of the locking rod or bolt 40, which, if desired,

may be combined with another "rod or bolt 39,.in thesame manneras shownin'Figs. 4 and 5, or, as"'show n in Figs. 6 and 7, the -rod 40 may beused Without any rod 39.

The shaft 5 is tubular and at its'right-hand end contains a sleeve keyedto the hand crank 6. The sleeve 60 is mounted to turn on a rod 61contained in the shaft 5, while a collar 62 and a nut 63 serve toprevent any movement of the sleeve 60 lengthwise of the rod 61. Thelatter, at its left-hand end, engages an inclined surface 64 rigid withthe shaft 5, and this end of the rod 61 has a lug 65 extending'into, andin a certain positionthrough, a slot 5 provided in the hollow shaft 5..The clutch sleeve 7 secured to the shaft 5 in such a manner as to rotatetherewith, while free to slide lengthwise on the shaft,haS arecess 7adapted to register with the slot 5' when the clutch sleeve 7 is in thecentral or neutral position (Fig. 7). In Fig. 6, the solid linesindicate the position in which the clutch sleeve 7 engages theclutchteeth of the'left-hand bevel wheel 9, while the dotted linesindicate the position in which the said clutch sleeve is in engagementwith the clutch teeth on the righthand bevel'wheel 8. It will be obviousfrom Figs. 6 and 7 that the In 65 of the rod 61 can enter the recess7 ony when the clutch sleeve 7 is in the neutral position, but when the saidsleeve is in either of the engaged or operative positions,-the innerwall of the sleeve (as shown in Fig. 6) forms a stop preventing theoutward movement of the lug 65, and since'the wedge action of theinclined surface 64 will tend to move the-lug 65 outwardly when the rod61 is shifted toward the left, it follows'that when the clutch sleeve 7is in either of the engaged positions, it locks the rod 61 againstlongitudinal movement to the left. Since the hand crank 6, keyed to thesleeve 60,-is compelled to carry the rod 61 with it when movedlengthwise, it follows that the crank 6 can be moved toward the leftonly when the clutch sleeve 7 is in the neutral position shown in Fig.7. This movement of the crank 6 causes the lug 65 to ride up the incline64 and to come into lockin engagement with the walls of the recess 7,and at the same time, the movementof the crank 6 toward the left couplessaid crank with the shaft 5, bythe action of the clutch .teeth 51, 52,in the same manner as inthe form of my invention'first described. Itwill be seen that when the shaft 5 is in operative connectionv with themotor, through the engagement of the clutch sleeve .7 with one or theother of the driving wheels 8, 9, it is impossible for the driver tothrow the hand crank '6 into drivin connection with the shaft 5;similarly, w en the hand crank 6 is in operative connection with theshaft 5 (Fig. '7), it is impossible to throw the motor into drivingconnection with the shaft 5, because'the clutch sleeve 7 is locked inits neutral position by the lug 65 of the rod 61.. I thus avoid, aS inthe form of my invention first described,'all possibility of in jury tothe driver through a simultaneous coupling of the -shaft 5 with the handcrank 6 and with the motor-driven wheel 8 or 9.

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that one Various modifications may be made without departing from thenature of my invention as set forth in the appended claims.

I claim as my invention:

1. In a motor plow, the combination of a steerin wheel, a carriertherefor, a plow share Frame adjustable up and down relatively to saidsteering wheel carrier, a device for'adjusting said frame relatively tothe steering'wheel carrier, stops on said carrier,,-a member carried bysaid frame and movable relatively thereto, said member being adapted tobe brought into engagement with said stops by the adjusting movement ofthe frame, and to be moved relatively to the-frame by the continuedmovement of such frame after such engagement has taken place, andmechanism, operated by the movement of said member relatively to theframe, for throwing said adjusting device out of action.

2. In a motor plow, the combination of a steerin wheel, a carriertherefor, a plow share rame adjustable up and-down relatively to saidsteering wheel carrier, a device for adjusting said frame relatively tothe steering wheel carrier, stops on said carrier, means carried by saidframe and adapted'to be brou ht into engagement with said stops by the ajusting movement of the frame, and mechanism thrown into action by theengagement of said stops with said means, for throwing thesaid'adjusting device out of action.

3. In a motor plow, a steering wheel, a

. carrier therefor, a plow share frame adjustableiup and down relativelyto said steering wheel carrier, a device for adjusting said framerelatively to said steering wheel carrier, stops on said carrier, meanscarried by said frame and adapted to be brought into engagement withsaid stops by the adjusting movement of the frame, mechanism thrown intoaction by the engagement of said stops with said means, for throwing thesaid adjusting device out of action, and manually-actuated means forthrowing said device out of action.

4. In a motor plow, the combination of a steering wheeL-a plow shareframe adjustable up and down relatively to said steering wheel, a devicefor adjusting said frame relatively to the steering wheel, a carrier forsaid steering wheel, the frame being adjustable up and down in relationto said carrier also, stops on said carrier, means carried by said frameand adapted to be brought into engagement with said stops by theadjusting movement of the frame, and mechanism thrown into action by theengagement of said stops with said means, for throwing the saidadjusting device out of action.

5. In a motor plow, the combination of a steering wheel, a carrier forsaid steering wheel, a plow share frame adjustable up and downrelatively to said carrier, a device for, adjusting said framerelatively to the carrier, stops mounted on said carrier and adjustableto difl'erent levels, means carried by' said frameand adapted to-bebrought into engagement with said'stops by the adjusting movement of theframe, and mechanism thrown into action by the engagement ill] betweensaid indicator and the adjusting device, said connection being such thateach position of said indicator will correspond to a single position ofthe adjustable frame.

7. In a motor plow, the combination of a steering wheel, a-plow shareframe adjustable up and down relatively to said steering wheel, a devicefor adjusting said frame relatively to the steering wheel, a connectionbetween the motor of the plow and said adjusting device, a movablemember controlling said connection, anda double locking mechanism forlocking said movable member and also the adjusting device itself.

8. In a motor plow, the combination of a steering wheel, a plow shareframe adjustableup and down relatively to said steering wheel, a devicefor adjusting said frame relatively to the steering wheel, a connectionbetweenthe motor of, the plow and said adjusting device, a movablemember controlling said connection, and a double locking mechanism oneelement of which is adapted to lock said movable controllin member,while the other element of the loc ing mechanism is adapted to lock theadjusting device itself, the two elements of the locking mechanism, andthe parts cooperating there with, being so arranged that during themovement which releases said controlling member, preparatory to throwingthe adjusting device into action, the locking mechanism will releasefirst the adjusting device itself and then the controlling member, whileduring the locking movement which follows the throwing out of action ofthe adjusting device, the locking mechanism will first look the saidcontrolling member and then the adjusting device itself.

9, In a motor plow, the combination of a steering wheel, a plow shareframe adjustable up and down relatively to said steering wheel, a devicefor adjusting said frame relatively to the steering wheel, a drivingconnection between the motor of the plow and said adjusting device, amovable member controlling said connection, a double mechaltlll llllnismfor locking said controllin member andals'o the adjusting deviceitse f, a hand crank adapted to be thrown into and out of drivingconnection with said adjusting device, and' a locking member connectedwith said locking mechanism and adapted to lock controlling sa1dconnection, mechanism for locking the said controlling member, a handcrank adapted to be thrown into and out of driving connection with saidadjusting device, and means, operated by the movement of the hand crankto its driving position, for bringing said locking mechanism to theposition in which it holds said controlling member in its neutral orinactive position.

1 1. Ina motor plow, the combination of a steering wheel, a plow shareframe adjustable' up and down relatively to said steeringwheel, a devicefor adjusting said frame relatively to the steering wheel, said devicecomprising a hollow shaft operatively connected with the movable frame,a clutch sleeve slidable on said shaft and held to rotate therewith,driving means operated by the motor of the plow and adapted foroperative connection with said clutch sleeve,

the latter being provided with a recess adapted to register with a slotin the shaft, atthe time the sleeve is in the neutral or releasingposition, a hand crank mounted on said shaft loosely, but adapted to bebrought into driving connection with the shaft by moving the cranklengthwise of the shaft, and a rod connected with said crank to movelengthwise therewith, said rod having a locking lug adapted toprojectthrough the slot of the shaft into the a recess of the clutchsleeve to lock the latter 'in its neutral position, the clutchsleeve,

when in its active position, holding and locking the said rod againstsuch longitudinal movement as would bring the hand crank to its drivingposition.

'12. In a motor plow, a support in engagement with the ground, a framecarrying plow shares and adjustable up and down relatively to saidsupport, a device for adjusting said frame relatively to said. support,stops connected with said support, means carried by said frame andadapted to be brought into engagement with said stops by the adjustingmovement of the frame, and mechanism thrown into action by theengagement of said stops with said means,

for throwing the said adjusting device out of action.

13. In a motor'plow, a support in engagement with the ground, a framecarrying plow shares, and adjustable, up and down relatively to saidsupport, a plow motor, a device, adapted for operation by the power ofthe plow motor, for adjusting said frame relatively to said support,stops connected with said support, means carried by said frame andadapted to be brought into engagement with said stops by the adjustingmovement of the frame, and mechanism thrown. into action by theengagement of said stops with said means, for disconnecting saidadjusting device from the plowmotor.

14. In a motor plow, a support in engagement with the ground, a framecarrying plow shares and adjustable up and down relatively to saidsupport, a plow motor, a device, adapted for operation by the power ofthe plow motor, for adjusting said frame relatively to said support,manually-controlled means for operatively connecting said device withthe plow motor, stops connected with said support, means carried by saidframe andadapted to be brought intoengagement with said stops by theadjusting movement of the frame, and mechanism thrown into action by theengagement of said stops with said means, for disconnecting saidadjusting device from the plow motor.

15. In a motor plow, a support in engagement with the ground, a framecarr ing plow shares and adjustable up and own relatively to saidsupport, a plow motor, a

device for adjusting said frame relatively to said support, means foroperating said device by manual power, means for'operating said deviceby the power of the plow motor, and a device for preventing the use ofsaid manually-operated means while the motqr power is connected withsaid adjustingdeviee.

16. In a motor plow, a s'up ort in engagement with the ground, a mecarrying plow shares and adjustable up and down relatively to saidsupport, a plow motor, a device for adjusting said frame relatively tosaid support, and power-transmitting means, -under the control of theoperator, and additional to the propelling mechanism of the plow, forappl ing the power of the plow motor to said ad justing device, wherebysaid frame may be adjusted vertically by the power of the motor whilethe plow;

including the said support, is being propelled by the power of themotor.

17. In a motor plow, two members one of which carries a steering wheelwhile the other carries plow shares and is adjustable up and downrelatively to the first-named tasaosa member, a device for adjusting themember carryingplow shares, relatively to the other member, stopsconnected with one of said members, and mechanism, comprising anactuating portion adapted to engage said stops and carried by the othermember, for

automatically throwing the said adjusting device out of action.

18. lln a motor plow, two members one of which carries a steering wheelwhile the other carries plow shares and is-adjustable up and downrelatively to the first-named member, a device for adjusting the membercarrying ploy shares, relatively to the other member, stops connectedwith one of said members, mechanism, comprising an actuating portionadapted toiengage said stops and carried by the other member, forautomatically throwing said adjusting device out of action, andmanually-actuated means for throwing said device into action.

19. in a motor plow, two members one of which carries a steering wheelwhile the other carries plow shares and is-adjustable up and downrelatively to the first-named member, a device for adjusting the membercarrying plow shares, relatively to the other member, stops connectedwith one of said members and adjustable relatively thereto to diiierentlevels, and mechanism, comprising an actuating portion adapted to engagesaid stops and carried by the other member,

for throwing said adjusting device out of ac-' tion automatically.

20. In a motor plow, a member in supporting engagement with the ground,another member carrying plow shares and adjustable up and downrelatively to the firstnamcd member, a device for adjusting the membercarrying plow shares, relatively to the other member, stops connectedwith one of said members, and mechanism, comprising anactuating portionadapted to engagesaid stops and carried by the other member, forthrowing said adjusting device out of action automatically.

21. in a motor plow, a member ip supporting engagement with the ground,another member carrying plow shares and adjustable up and downrelatively to the firstnamed member, a plow motor, a device, adapted foroperation by the power of the plow motor, for adjusting the membercarrying plow shares, relatively to the other member, stops connectedwith one of said members, and mechanism, comprising an actuating portionadapted to engage said stops and carried by the other member, forautomatically disconnecting said adjusting device from the plow motor.

22. in a motor plow, a member in sup porting engagement with the ground,an other member carrying plow shares and adjustable up and downrelatively to the firstnamed member, a plow motor, a device, adapted foroperation by the power of the plow motor, for adjusting the membercarrying plow shares, relatively to the other member,manually-controlled means for operatively connecting said device withthe plow motor, stops connected with one of said members, and mechanism,comprising an actuating portion adapted to engage said stops and carriedby the other member, for automatically disconnecting said adjustingdevice from the plow motor.

23. In avehicle, the combination of a sup port adapted to engage theground, a frame .movable-up and down relatively to said sup port, anadjusting device for raising or lowering said frame relatively to saidsupport, a motor, a connection between the motor and said adjustingdevice, a movable member controlling said connection, a hand crankmovable into and out of driving relation to said adjusting device, and alocking mechanism comprising operatively connected members one of whichis adapted to prevent the hand crank from being moved into its activeposition when said movable controlling member is in its active position,while the other member of the locking mechanism is adapted to hold saidcontrolling member in itsreleasing or neutral position at the time thehand crank is free to be moved to its driving position.

In testimony whereof l have signed this specification in the presence oftwo subscribing witnesses.

CARL GLEICHE.

Witnesses:

'HERMANN Senna, lFnANz Konmriinnnnl

